The Marlin comes with a 160mm rotor at each end, which is inadequate for a 29er. The rear brake works passably well but the front one doesn't. Swapping the front rotor for a 180mm one is a cheap option that makes a big difference!
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https://www.youtube.com/watch?v=-f-c37khves
A windy approach - Twin Otter in X-Plane and FSX.
ADDENDUM.
I'm now pretty sure I was not using the same METARs here so this actually isn't a good comparison of the weather. I may repeat this experiment sometime.
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https://www.youtube.com/watch?v=1WxyjPCqFcY